body{
    font-family: lucida grande, lucida, verdana, sans-serif;
    text-align: center;
    margin: 0 auto;
    background-image: url("../img/universo.jpg");
    background-repeat:no-repeat;
    color: white;
}
#intro{
    width: 500px;
    height: 450px;
     background-image: url("../img/intro.png");
    background-repeat:no-repeat;
    margin: 5% auto;
    }
    .muestra{
    display: none;
    position:fixed;
    top:62%;
    left:34%;
    font-size: 26px;
    text-shadow: 4px 4px black;
    width: 400px;
    height: 200px;
    }
    #marquesina{
        height: 600px;
    }
    a:link{
    position: relative;   
    font-size: 15px;
   
    color: gold;
    background-color: black;
    width: 100px;
    height: 30px;
font-size: 16px
 
    }
    a:visited{
     position: relative;   
    font-size: 15px;
   
    color: gold;
    background-color: black;
    width: 100px;
    height: 30px;
    font-size: 16px
    }
    a:active{
     position: relative;   
    font-size: 15px;
  
    color: gold;
    background-color: black;
    width: 100px;
    height: 30px;
    font-size: 16px
    }